99620472 has 64 divisors (see below), whose sum is σ = 288564480. Its totient is φ = 28069632.

The previous prime is 99620471. The next prime is 99620489. The reversal of 99620472 is 27402699.

It is a self number, because there is not a number n which added to its sum of digits gives 99620472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99620471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8203 + ... + 16325.

It is an arithmetic number, because the mean of its divisors is an integer number (4508820).

Almost surely, 2^99620472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99620472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144282240).

99620472 is an abundant number, since it is smaller than the sum of its proper divisors (188944008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99620472 is a wasteful number, since it uses less digits than its factorization.

99620472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8212 (or 8208 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 99620472 is about 9981.0055605635. The cubic root of 99620472 is about 463.5709346138.

The spelling of 99620472 in words is "ninety-nine million, six hundred twenty thousand, four hundred seventy-two".